Sound-modifier for talking-machines.



PATENTED NOV. 21, 1905.

C. R. KING. SOUND MODIPIER FOR TALKING MACHINES.

APPLICATION FILED MAILM, 1905.

awuemt z PATENT OFFICE.

CHARLES R. KING, OF NEIV YORK, N. Y.

SOUND-MODIFIER FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed March 14, 1906. Serial No. 260,038.

To all whom, it may concern.-

Be it known that 1, CHARLES R. KING, a citi- Zen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Sound-Modifiers for Talking-Machines, of which the following is a specification.

The object of my invention is to provide an attachment or device for reproducers of talking-machines which will modify the sound- Waves produced by the diaphragm and improve the tone and render more distinct the words spoken and dampen the non-musical Waves usually heard in such instruments; and to this end my invention consists in the construction, arrangement, and combination of parts, all as hereinafter described.

In the accompanying drawings, to which reference is made and which form a part of this specification, Figure 1 is a sectional ole vation of a reproducer for talking-machines having my invention applied thereto. Fig. 2 is an enlarged plan view of the sound-modi fier removed. Fig. 3 is a sectional elevation of the same, and Fig. A is a like view showing a modification.

In the drawings, 2 designates the diaphragm of a talking-machine reproducer, and 3 designates the tube thereof, to which a tube megaphone, horn, or sound-conveyer may be attached in the usual or any desired way.

4 designates the sound or Wave modifier, held, preferably, about one-half inch from the diaphragm; but I do not limit myself to any specific location. As here shown, it is held in the tube 3 and is in the general form of a cone with its apex toward the diaphragm. The base is formed with marginal recesses forming outside wave or sound passages 5. Through this is formed a wave or sound passage 6, preferably diverging from the apex to the base, as shown clearly in Figs. 3 and i. A slight convexity 7 is formed in the outer surface of the modifier which terminates at a shoulder 8; but this shoulder may be omitted, if desired, the convexity 7 then coalescing directly with the rounded end 9. In the form shown in Figs. 1, 2, and 3 a transverse passage 10 is formed through the modifier, and one or more strands 12 of wire or other suitable material are held in said passage crossing the central sound-passage 6, the said strands acting to take up and neutralize the non-musical sound-waves projected from the diaphragm. In the form shown in Fig. 4: I have shown a second transverse passage 13 at right angles to the passage 10 and in which like strands 14 are held, which still further take up and modify the waves produced by the diaphragm. I prefer to form the modifier with a hole 15 or other suitable device by which it can be conveniently removed from the tube 3, as shown in Fig. 4, and in this form I construct the modifier with a collar 16, which forms a shoulder 17 for retarding or abruptly deflecting the sound-waves coming from the central or most active part of the diaphragm.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A sound-modifier for talking-machine reproducers the same being constructed in tapering form with a passage through it and formed with a base which fits the sound-passage leading from the reproducer, said base being formed with marginal recesses, substantially as described.

2. Asound-modifier for talking-machine reproducers, the same being constructed in tapering form with a tapering passage through it and formed with a base which fits the soundpassage leading from the reproducer, said base being formed with marginal recesses, substantially as described.

3. A sound-modifier for the reproducers of talking-machine, the same being constructed in tapering form and with a longitudinal passage through it and having one or more strands crossing said longitudinal passage,substantially as described.

4.. A sound or wave modifier for. talkingmachines constructed in conical form and having side passages formed therein and formed with a conical longitudinal passage and provided with one or more transverse strands held in said longitudinal passage, substantially as described.

CHARLES R. KING.

IVitnesses):

H. ALBnRTUs Wns'r, M. J. MAHONY. 

